G.I.S.M. (???, Gizumu) is a Japanese
hardcore punk band formed in Tokyo in 1981. Even though the
guitar style resembled heavy metal in many aspects,
GISM was one of the first Japanese
hardcore bands, while at the same time drawing influence from the early industrial/avant-garde
music scene?something uncommon in
punk bands at that time. The
acronym GISM has many
different variations;[
citation needed] they include: "Guerrilla Incendiary
Sabotage Mutineer" (original), "
God In the Schizoid Mind", "Grand
Imperialism Social Murder", "
Genocide Infanticide Suicide Menticide", "Gay Individual Social Mean", "Gothic Incest Sex Machine", "Grubby Incest Stripper Mastitis", "Gravity Impel Slaying
… Read more Machine", "Get Incinerated Sorrow Mass", "Gore Impromptu Suicide Mine", "Grim Iconic Sadistic Mantra" and "Gnostic Idiosyncrasy Sonic Militant".
GISM has attained a cult status in the international
punk scene, duly for their unique blend of heavy metal and
hardcore punk. Roadrunner Records ranked Sakevi Yokoyama No. 49 out of 50 of The Greatest Metal Frontmen of All Time.